晚唐小品文
可能不属于安全作业证制度规定的作业是（） ["动火作业。","设备检修、维修作业。","金属切削作业。","吊装、爆破作业"]
境内第三类医疗器械由（）审查，批准后发给医疗器械注册证书。 ["省、自治区、直辖市（食品）药品监督管理部门","省级卫生部门","设区的市级（食品）药品监督管理机构","国家食品药品监督管理局"]
孤立病灶
Your network contains an Active Directory domain. You have a server named Server1 that runs Windows Server 2008 R2. Server1 is an enterprise root certification authority （CA）. You have a client computer named Computer1 that runs Windows 7. You enable automatic certificate enrollment for all client computers that run Windows 7. You need to verify that the Windows 7 client computers can automatically enroll for certificates. Which command should you run on Computer1（） ["certreq.exe retrieve","certreq.exe submit","certutil.exe getkey","certutil.exe pulse"]
设在125ps内传输128个二进制码元，计算信息传输速率为多少？若该信息在5s内有3个码元产生误码，试问其误码率为多少？
